A Jiéqì is one of 24 points spaced 15° apart along the ecliptic used by all traditional East Asian lunisolar calendars to stay synchronized with the seasons. Because the Sun's speed along the ecliptic varies depending on the Earth-Sun distance, the number of days that it takes the Sun to travel between each pair of jiéqì varies slightly throughout the year. Jiéqìs originated in China, then spread to Korea, Vietnam, and Japan. The plane of the Ecliptic is well seen in this picture from the 1994 lunar prospecting Clementine spacecraft. ... A lunisolar calendar is a calendar whose date indicates both the moon phase and the season. ... The Sun (occasionally referred to as Sol) is the star at the centre of our solar system. ... The Great Wall of China, stretching over 6,700 km, was erected beginning in the 3rd century BC to guard the north from raids by men on horses. ... Korea is a formerly unified country, situated on the Korean Peninsula in northern East Asia, bordering on China to the west and Russia to the north. ... The Socialist Republic of Vietnam is a country in Southeast Asia. ... Official language Japanese Capital Tokyo Largest City Tokyo Emperor Akihito Prime Minister Junichiro Koizumi Area  - Total  - % water Ranked 60th 377,835 km² 0. ...

1. Simplified Chinese name is shown in parentheses if it differs from the traditional name.
2. Hanja is indicated in parentheses.
3. Date can vary within the ±1 day range.

Traditional Chinese characters are one of two standard character sets of printed contemporary Chinese written language. ... Kana is a general term for two types of syllabic Japanese script: hiragana (ひらがな) and katakana (カタカナ). ... Hangul is the native alphabet used to write the Korean language (as opposed to the Hanja system borrowed from China). ... The Vietnamese alphabet (quốc ngữ or national script) is the current writing system for the national language of Vietnam. ... Simplified Chinese characters (Simplified Chinese: 简体字; Traditional Chinese: 簡體字; pinyin: jiǎntǐzì; also called 简化字/簡化字, jiǎnhuàzì) are one of two standard character sets of printed contemporary Chinese written language. ... The characters for Kanji, lit. ... Hanja (lit. ... Pinyin (拼音, Pīnyīn) literally means join (together) sounds (a less literal translation being phoneticize, spell or transcription) in Chinese and usually refers to Hànyǔ Pīnyīn (汉语拼音, literal meaning: Han language pinyin), which is a system of romanization (phonetic notation and transliteration to roman script) for Standard Mandarin used in the... For other meanings, see Hepburn (disambiguation). ... The Revised Romanization of Korean is the official Korean language romanization system in South Korea. ... Wade-Giles, sometimes abbreviated Wade, is a Romanization (phonetic notation and transliteration) system for the Chinese language based on Mandarin. ... Nihon-shiki or Nippon-shiki (日本式 Japan-style; romanized as Nihon-siki or Nippon-siki in Nippon-shiki itself) is a romanization system for transcribing the Japanese language into the Roman alphabet. ... McCune-Reischauer is one of the two most widely used Korean language romanization systems, along with the Revised Romanization of Korean, which replaced McCune-Reischauer as the official romanization system in South Korea in 2000. ... This article refers to the process of hibernation in biology. ... The Chinese calendar is a lunisolar calendar formed by combining a purely lunar calendar with a solar calendar. ... In astronomy, the vernal equinox (spring equinox, March equinox, or northward equinox) is the equinox at the beginning of spring in the northern hemisphere: the moment when the sun appears to cross the celestial equator, heading northward. ... Cereal crops are mostly grasses cultivated for their edible seeds (actually a fruit called a grain, technically a caryopsis). ... The summer solstice is an astronomical term regarding the position of the Sun in relation to the celestial equator. ... In astronomy, the autumnal equinox signals the beginning of autumn in the northern hemisphere: the moment when the sun appears to cross the celestial equator, heading southward; the equinox occurs around September 22–September 24, varying slightly each year according to the 400-year cycle of leap years in the... In astronomy, the winter solstice is the moment when the earth is in a point of its orbit at which the northern or southern hemisphere is most inclined away from the sun. ...

See also

• Chinese calendar
• Korean calendar
• Japanese calendar

The Chinese calendar is a lunisolar calendar formed by combining a purely lunar calendar with a solar calendar. ... The Chinese calendar is a lunisolar calendar formed by combining a purely lunar calendar with a solar calendar. ... Since January 1, 1873, Japan has used the Gregorian Calendar, with local names for the months and mostly fixed holidays. ...

External links

• 24 Solar Terms - Hong Kong Observatory (http://www.hko.gov.hk/gts/time/24solarterms.htm)